The nurse receives a client from the post-anesthesia unit with a new onset of sinus tachycardia and a heart rate of 118 beats per minute. To which reasons does the nurse relate the increased heart rate? (Select All that Apply.)

Anxiety

Sleep

Fever

Hyperglycemia

Blood loss

Answer and Explanation

Correct Answer : A,C,E

A. Anxiety:

Anxiety can lead to an increased heart rate due to the activation of the sympathetic nervous system. When a person is anxious, their body releases stress hormones like adrenaline, which can stimulate the heart to beat faster. This increased sympathetic activity can cause sinus tachycardia, where the heart rate is faster than normal.

B. Sleep:

While sleep can affect heart rate variability, causing fluctuations in heart rate during different stages of sleep, it typically does not cause a significant and sustained increase in heart rate like sinus tachycardia. Sleep is more likely to influence heart rate patterns rather than directly cause sinus tachycardia.

C. Fever:

Fever, especially in response to infection or inflammation, can lead to an elevated heart rate. The body's response to fever includes increased metabolic activity, which can raise the heart rate as part of the physiological stress response. Fever-induced sinus tachycardia is a common finding in individuals with infections.

D. Hyperglycemia:

While hyperglycemia (high blood sugar levels) can have cardiovascular effects over time, such as contributing to atherosclerosis and heart disease, it is not typically a direct cause of sinus tachycardia. Sinus tachycardia is more commonly associated with acute stressors like anxiety, fever, or hypovolemia (such as from blood loss).

E. Blood loss:

Significant blood loss, such as during surgery or due to trauma, can result in hypovolemia, where there is a decrease in blood volume circulating in the body. In response to hypovolemia, compensatory mechanisms kick in, including an increase in heart rate (sinus tachycardia), to maintain blood pressure and perfusion to vital organs.

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Correct Answer is ["1712.32"]

Explanation

To calculate the client's total intake for the 8-hour shift, we need to convert all the volumes to milliliters (mL) and then add them together. Here are the given volumes and their conversions:

1,000 mL 0.9% sodium chloride IV (no conversion needed)

One 6-oz cup of coffee:

6 oz * 29.5735 (conversion factor for oz to mL) = approximately 177.44 mL

6 oz of water:

6 oz * 29.5735 = approximately 177.44 mL

One 180-mL bowl of soup (no conversion needed)

3 oz of flavored gelatin:

3 oz * 29.5735 = approximately 88.72 mL

3 oz of ice cream:

3 oz * 29.5735 = approximately 88.72 mL

Now, let's add up all the volumes:

1,000 mL (IV fluid) + 177.44 mL (coffee) + 177.44 mL (water) + 180 mL (soup) + 88.72 mL (gelatin) + 88.72 mL (ice cream) = 1,712.32 mL

Therefore, the nurse should document the client's total intake for the shift as approximately 1,712.32 mL.

A. When the client states he is ready to start the infusion B. As soon as the nurse can prepare the client and the administration set C. 2 hours after obtaining blood from the blood bank D. When the client has finished eating lunch

Correct Answer is B

Explanation

A. When the client states he is ready to start the infusion:

While it's important to consider the client's readiness and cooperation, the timing of the infusion should not solely depend on the client's statement. The priority is to start the infusion promptly after receiving the packed red blood cells (PRBCs) from the blood bank to ensure their safety and effectiveness.

B. As soon as the nurse can prepare the client and the administration set:

This choice is the correct answer. After receiving the unit of PRBCs from the blood bank at 1130, the nurse should begin the infusion as soon as possible after preparing the client (ensuring the correct patient, verifying the blood type compatibility, obtaining informed consent, etc.) and the administration set (priming the IV tubing, checking for any leaks, etc.). Prompt administration helps prevent delays that could compromise the quality of the blood product.

C. 2 hours after obtaining blood from the blood bank:

Waiting for 2 hours before starting the infusion is too long and could exceed the recommended timeframe for administering PRBCs after obtaining them from the blood bank. Delaying the infusion for such an extended period could impact the viability and safety of the blood product.

D. When the client has finished eating lunch:

The timing of the client's meal is not a factor in determining when to start the infusion of PRBCs. While it's generally important for the client to have adequate nutrition and hydration, the priority is to administer the blood product promptly after preparation to ensure its efficacy and safety, rather than waiting for unrelated factors such as meal times.

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The nurse receives a client from the post-anesthesia unit with a new onset of sinus tachycardia and a heart rate of 118 beats per minute. To which reasons does the nurse relate the increased heart rate? (Select All that Apply.)

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is ["1712.32"]

Explanation

A nurse receives a unit of packed RBCs from a blood bank and notes that the time is 1130. The nurse should begin the infusion at which of the following times?

Correct Answer is B

Explanation

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